Dog delight in bk has them
In SI, most stores have rats and mice
But the only ones i know of that have different sizes are Animal Kingdom (terrible reptile selection and unhealthy animals, wouldn't buy from there, and feeders are on cedar), Arcadia Pets (good selection of reptiles, although there are unhealthy ones, they have different sizes of rats and mice.), and Animal Pantry (probably the best pet store on the island, they have a good reptile selection and their animals are mostly healthy, they breed rats in the store and they look pretty good, mice too)
